An official end to the two-party system?: The Labour and Conservative Parties have routinely switched power over the course of the past several decades. Pre-election polls suggest that, for the second consecutive election, neither party may score an outright majority and may have to form a coalition.

The rise of the Scottish National Party: One potential irony of the election is that the Scottish National Party, which advocates for Scottish independence from the United Kingdom, could become a key player in the formation of a British government. Right now, the SNP looks poised to pick up nearly all of Scotland's 59 seats, which could make it an attractive partner for Labour.

Snapshot

Military cadets rest at World War II memorial before a parade celebrating Victory Day in Kiev, Ukraine. (Efrem Lukatsky / AP)

Quoted

Molly Ball: "It wasn't the first time Hillary Clinton has found herself up against Bill Clinton's record, and it likely won't be the last. As the former first lady stakes out a forthrightly liberal platform for her second presidential campaign, she is increasingly at odds with the legacy of her husband. If the promises she's making now bear fruit, a second Clinton administration could well end up reversing many of the policies of the first one."

Evening Read

Parkinson’s patients, for example, often experience “breaks” or “freezing,” and have trouble initiating movement. “It's not entirely clear why freezing happens,” [neuroscientist Jessica Grahn] says. But “one thing that people have observed is that if you play music that has a steady beat, or sometimes even just a metronome with a steady beat, these patients seem to have improvements in their walking.” Grahn has also observed music seeming effective in elongating and improving the gait of Parkinson's patients, which is often jerky and unsteady.